<template>
	<view class="settle-container">
		<!-- 全选 -->
		<view class="settle-radio">
			<label class="radio">
				<radio @click="checkAllState" :checked="isFullCheck" color="#C00000"/><text>全选</text>
			</label>
		</view>
		<!-- 合计 -->
		<view class="amount">
			<text>合计：</text>
			<text class="price">￥{{checkedGoodsAmount}}</text>
			
		</view>
		
		<!-- 结算 -->
		<view class="settle" @click="settlement">
			结算({{checkCounts}})
		</view>
		
	</view>
</template>

<script>
	import { mapGetters,mapMutations,mapState } from 'vuex'
	export default {
		name:"my-settle",
		computed:{
			...mapGetters('m_cart',['checkCounts', 'total','checkedGoodsAmount']),
			...mapGetters('m_user',['addr']),
			...mapState('m_user',['token','redirectInfo']),
			...mapState('m_cart',['cart']),
			
			// 是否全选
			isFullCheck(){
				return this.total === this.checkCounts
			}
		},
		data() {
			return {
				// 倒计时的吗秒数
				seconds: 3,
				// 定时器id
				timer: null
			};
		},
		methods:{
			...mapMutations('m_cart',['updateAllGoodsState']),
			...mapMutations('m_user',['updateRedirectInfo']),
			//  全选/反选
			checkAllState(){
				this.updateAllGoodsState(!this.isFullCheck)
			},
			// 结算
			settlement(){
				console.log('12');
				if(!this.checkCounts) return uni.$showMsg('请选中商品')
				if(!this.addr) return uni.$showMsg('请选择地址')
				// if(!this.token) return uni.$showMsg('请先登录')
				// 没有token 就让用户延时跳转登录页面
				if(!this.token) return this.delayNavigate()
				// 结算已经登录的用户 发起支付订单请求
				this.payOrder()
			},
			// 支付订单
			async payOrder(){
				// 1创建订单 组织订单的信息对象
				const orderInfo = {
					// 开发期间咱不用真实价格
					// order_price: this.checkedGoodsAmount,
					order_price: 0.01,
					consignee_addr: this.addr,
					goods: this.cart.filter(x => x.goods_state).map(x =>({
						goods_id: x.goods_id,
						goods_number: x.goods_count,
						goods_price: x.goods_price
					}))
				}
				
				//1.1 发起请求创建订单
				const {data : res} = await uni.$http.post('/api/public/v1/my/orders/create',orderInfo)
				
				if(res.meta.status !== 200) return uni.$showMsg('创建订单失败')
				
				// 1.2得到服务器响应的订单编号
				const orderNumber = res.message.order_number
				
				console.log(orderNumber);
				
				// 2. 订单预支付
				  // 2.1 发起请求获取订单的支付信息
				  const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', { order_number: orderNumber })
				  // 2.2 预付订单生成失败
				  if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
				  // 2.3 得到订单支付相关的必要参数
				  const payInfo = res2.message.pay
				  
				  // 3. 发起微信支付
				     // 3.1 调用 uni.requestPayment() 发起微信支付
				     const [err, succ] = await uni.requestPayment(payInfo)
				     // 3.2 未完成支付
				     if (err) return uni.$showMsg('订单未支付！')
				     // 3.3 完成了支付，进一步查询支付的结果
				     const { data: res3 } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
				     // 3.4 检测到订单未支付
				     if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
				     // 3.5 检测到订单支付完成
				     uni.showToast({
				       title: '支付完成！',
				       icon: 'success'
				     })
				
			},
			// 延时导航到my页面
			delayNavigate(){
				// 重置秒数的初始值
				this.seconds = 3
				
				this.showTips(this.seconds)
				
				this.timer = setInterval(()=>{
					
					this.seconds--
					if(this.seconds <= 0){
						clearInterval(this.timer)
						// 未登录3s之后跳到my页面去登录
						uni.switchTab({
							url:'/pages/my/my',
							// 页面跳转成功后的回调函数
							success: () =>{
								// 调用vuex的updateRedirectInfo方法 把当前跳转的信息存储到Store中
								this.updateRedirectInfo({
									// 跳转的方式
									openType: 'switchTab',
									// 从哪个页面跳转过去
									from: '/pages/cart/cart'
								})
							}
						})
						return
					}
					this.showTips(this.seconds)
				},1000)
			},
			// 展示倒计时的提示消息
			showTips(n){
				uni.showToast({
					icon:'none',
					title: '请登录后再结算！' + n + '秒之后自动跳转到登录页',
					mask:true,
					duration: 1500
				})
			}
		}
	}
</script>

<style lang="scss">
	.settle-container{
		position: fixed;
		bottom: 0;
		left: 0;
		display: flex;
		justify-content: space-between;
		align-items: center;
		height: 50px;
		width: 100%;
		background-color: #fff;
		.settle-radio{
			padding-left: 5px;
			.radio{
				display: flex;
				justify-content: center;
				align-items: center;
			}
		}
		.amount{
			display: flex;
			justify-content: space-between;
			.price{
				text-align: center;
				color: #C00000;
				font-weight: bold;
			}
		}
		
		.settle{
			min-width: 100px;
			height: 50px;
			line-height: 50px;
			text-align: center;
			color: #fff;
			background-color: #C00000;
		}
	}
</style>
